Because we want to have information about how testing of requirements is going on, we need to provide an execution context.For this report, execution context considers:

Test project Test plan Platforms (if exist)

Requirement are defined at Test project levelExecution results are recorded for: test plan, platform (if any exists) and build.A Test plan defines a subset of test cases present on Test project, and because Requirements are covered by one or more test cases, this means that test plan defines in indirect way a subset of requirements.